Compiled by Imam Yahya ibn Sharaf al-Nawawi
عن أنس رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم : "لا عدوى ولا طِيَرة ويعجبني الفأل" قالوا: وما الفأل؟ قال: "كلمة طيبة" ((متفق عليه)).
The Messenger of Allah (ﷺ) said, "Not the transmission of disease of one person to another and no evil omen, but I am pleased with good omens." He was asked: "What is good omen?" He replied, "A good word."[Al-Bukhari and Muslim].